Climate averages 1991–2020
Hyesan weather
in August.
A warm, wet month: the 2nd warmest and the 11th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
August is a warm month in Hyesan: daytime highs average 24.4°C and nights cool to about 15.1°C. By daytime temperature it is the 2nd warmest of the 12 months.
Expect about 136 mm of rain on roughly 14 days, which makes August a wet month (the 11th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 13 h 50 min on an average August day.
The nearest other city in this atlas is Changam-ch’on (102 km away). In August its highs average 26.5°C, 2.1°C warmer than Hyesan, with 177 mm of rain.
Among the 38 cities listed in North Korea, Hyesan ranks 37th of 38 for the warmest August highs and 1st of 38 for the driest August (rainfall, lowest first). The mean August high of those 38 cities is 27.1°C; Hyesan is 2.7°C cooler than that mean.
From August to September, average highs fall by 4.8°C to 19.7°C, and monthly rainfall falls from 136 mm to 70 mm.
The annual picture
August in context
Monthly precipitation
Average total · mmAverages from hourly ERA5 reanalysis data. Actual weather varies from year to year. How these numbers are calculated
Every month, side by side
Hyesan climate table
| Month | Average highHigh / low | Average low | Precipitation mm/month | Wet days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | -8.0°C-20.9°C | -20.9°C | 10 | 3.1 | 9.610 h |
| February | -4.2°C-17.6°C | -17.6°C | 18 | 4.6 | 10.611 h |
| March | 2.3°C-9.2°C | -9.2°C | 33 | 7.9 | 11.912 h |
| April | 11.0°C-0.4°C | -0.4°C | 56 | 10.5 | 13.313 h |
| May | 18.0°C5.5°C | 5.5°C | 95 | 14.9 | 14.514 h |
| June | 22.3°C11.2°C | 11.2°C | 97 | 15.5 | 15.115 h |
| July | 24.9°C15.4°C | 15.4°C | 164 | 17.3 | 14.815 h |
| August, selected | 24.4°C15.1°C | 15.1°C | 136 | 14.2 | 13.814 h |
| September | 19.7°C8.8°C | 8.8°C | 70 | 7.9 | 12.513 h |
| October | 12.1°C1.3°C | 1.3°C | 43 | 7.6 | 11.111 h |
| November | 2.5°C-7.5°C | -7.5°C | 38 | 7.7 | 9.910 h |
| December | -6.0°C-18.0°C | -18.0°C | 18 | 5.2 | 9.29 h |
Precipitation (rain or snow, as water) is the average of the 30 separate monthly totals. A wet day is a local calendar day with at least 1 mm of precipitation. Daylight is the calculated sunrise-to-sunset length, not measured sunshine.
Compare places
August in nearby cities
- Changam-ch’on in AugustNorth Korea · 102 kmHigh 26.5°C · Low 19.4°C · 177 mm rain
- Hwasŏng in AugustNorth Korea · 111 kmHigh 25.5°C · Low 19.0°C · 173 mm rain
- Myŏnggan-dong in AugustNorth Korea · 114 kmHigh 25.4°C · Low 18.9°C · 173 mm rain
- Ŏrang in AugustNorth Korea · 123 kmHigh 24.6°C · Low 19.5°C · 174 mm rain
- Chongjin in AugustNorth Korea · 140 kmHigh 23.8°C · Low 19.3°C · 215 mm rain
- Kanggye in AugustNorth Korea · 142 kmHigh 26.5°C · Low 18.1°C · 207 mm rain
- Helong in AugustChina · 144 kmHigh 25.7°C · Low 16.9°C · 160 mm rain
- Sinp’o in AugustNorth Korea · 151 kmHigh 24.7°C · Low 20.9°C · 175 mm rain
Read the numbers correctly
Climate, not a promise.
These patterns help compare months. They cannot tell you the weather on a specific day of your trip.
Sources, method and limitsHow these numbers are made (what the highs, lows and rain days mean, the sources and the model cell used for Hyesan) is explained once on the Hyesan year overview and on the Sources, method and limits page.